CI-windows.yml: removed explicit usage of Visual Studio CMake generators #1337

Job	Run time
build (windows-11-arm, Debug, sln)	3m 14s
build (windows-2025-vs2026, Release, slnx)	1m 20s
build (windows-2022, Release, sln)	1m 21s
build (windows-11-arm, Release, sln)	3m 45s
build (windows-2025, Debug, sln)	1m 9s
build (windows-2025, Release, sln)	1m 17s
build (windows-2025-vs2026, Debug, slnx)	55s
build (windows-2022, Debug, sln)	1m 5s
	14m 6s

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